Combination search
Looking for commercially available native plant species suitable to your state or region, try the Recommended Species page.
| scientific name | common name(s) | image gallery |
| Cirsium undulatum var. undulatum | Wavyleaf Thistle Gray Thistle Pasture Thistle | |
| Clarkia borealis | Northern Clarkia Northern Fairyfan | |
| Clarkia borealis ssp. borealis | Northern Clarkia Northern Fairyfan | |
| Cleomella brevipes | Short-stalk Stinkweed Shortstalk Stinkweed | |
| Cleomella longipes | Chiricahua Mountain Stinkweed | |
| Cleomella obtusifolia | Bluntleaf Stinkweed Mojave Cleomella Mojave Stinkweed | |
| Cleomella palmeriana | Palmer’s Cleomella Rocky Mountain Stickweed | |
| Cleomella parviflora | Slender Cleomella Slender Stinkweed Small-flower Stinkweed | |
| Cleomella plocasperma | Alkali Cleomella Alkali Stinkweed Twisted Cleomella | |
| Clarkia unguiculata | Elegant Clarkia Elegant Fairyfan Mountain Garland | |
| Clarkia williamsonii | Fort Miller Clarkia | |
| Corispermum americanum | American Bugseed | |
| Corispermum americanum var. americanum | American Bugseed | |
| Corispermum americanum var. rydbergii | American Bugseed | |
| Corydalis aurea | Scrambled Eggs Golden Corydalis | |
| Cosmos caudatus | Wild Cosmos | |
| Conyza canadensis | Horseweed Canadian Horseweed | |
| Cordylanthus capitatus | Yakima Bird's Beak Yakima Bird's-beak | |
| Conyza canadensis var. canadensis | Canadian Horseweed | |
| Conyza canadensis var. glabrata | Canadian Horseweed Horseweed | |
| Conyza canadensis var. pusilla | Canadian Horseweed | |
| Cordylanthus eremicus | Desert Bird's Beak Desert Bird's-beak | |
| Cordylanthus eremicus ssp. eremicus | Desert Bird's Beak Desert Bird's-beak | |
| Cordylanthus eremicus ssp. kernensis | Kern Bird's Beak Kern Plateau Bird's Beak Kern Plateau Bird's-beak | |
| Corchorus hirtus | Orinoco Jute Hairy Jute Red Jute | |
| Corispermum hookeri | Hooker Bugseed Hooker's Bugseed | |
| Corispermum hookeri var. hookeri | Hooker Bugseed Hooker's Bugseed | |
| Corispermum hookeri var. pseudodeclinatum | Hooker Bugseed Hooker's Bugseed | |
| Cordylanthus kingii | King's Bird's Beak King's Bird's-beak | |
| Cordylanthus kingii ssp. helleri | Heller's Bird's Beak Heller's Bird's-beak | |
| Cordylanthus laxiflorus | Nodding Bird's Beak Nodding Bird's-beak | |
| Collomia linearis | Tiny Trumpet Narrow-leaf Mountain-trumpet Collomia | |
| Collomia mazama | Mt. Mazama Collomia Mount Mazama Collomia Crater Lake Collomia Mt. Mazama Mountain-trumpet | |
| Cordylanthus maritimus | Salt Marsh Bird's Beak Saltmarsh Bird's Beak Saltmarsh Bird's-beak | |
| Cordylanthus maritimus ssp. canescens | Salt Marsh Bird's Beak Saltmarsh Bird's Beak Saltmarsh Bird's-beak | |
| Cordylanthus maritimus ssp. maritimus | Salt Marsh Bird's Beak Salt Marsh Bird's-beak Saltmarsh Bird's-beak | |
| Cordylanthus maritimus ssp. palustris | Point Reyes Bird's-beak Point Reyes Salty Bird's-beak Pt. Reyes Bird's-beak Salt Marsh Bird's Beak Saltmarsh Bird's-beak | |
| Cordylanthus mollis | Soft Bird's Beak Soft Bird's-beak | |
| Cordylanthus mollis ssp. hispidus | Hispid Bird's Beak Hispid Bird's-beak Hispid Salty Bird's-beak | |
| Cordylanthus mollis ssp. mollis | Soft Bird's Beak Soft Bird's-beak Soft Salty Bird's Beak | |
| Corispermum navicula | Boat-shaped Bugseed Colorado Bugseed Crescent Bugseed | |
| Cordylanthus nevinii | Nevin's Bird's Beak Nevin's Bird's-beak | |
| Corispermum ochotense | Alaskan Bugseed Okhotian Bugseed Russian Bugseed | |
| Corispermum ochotense var. alaskanum | Alaskan Bugseed | |
| Corispermum ochotense var. ochotense | Okhotian Bugseed Russian Bugseed | |
| Cosmos parviflorus | Southwestern Cosmos Southwest Cosmos | |
| Corispermum pacificum | Common Bugseed Pacific Bugseed | |
| Corispermum pallasii | Pallas Bugseed Siberian Bugseed | |
| Corispermum pallidum | Pale Bugseed | |
| Cordylanthus palmatus | Palmate Salty Bird's Beak Palmate-bracted Bird's Beak Palmbract Bird's-beak | |
| scientific name | common name(s) | image gallery |
